organic compounds
(E)-N′-(2,4-Dichlorobenzylidene)-3-nitrobenzohydrazide
aJiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Department of Chemistry, Yancheng Teachers University, Yancheng 224002, People's Republic of China
*Correspondence e-mail: xpzhougroup@163.com
The title compound, C14H9Cl2N3O3, was prepared by the reaction of 3-nitrobenzohydrazide with 2,4-dichlorobenzaldehyde. The molecule adopts an E configuration about the C=N bond. The dihedral angle between the two benzene rings is 4.6 (2)°. In the crystal, the hydrazone molecules are linked through intermolecular N—H⋯O hydrogen bonds, forming chains along the c axis.
Related literature
For medical applications of et al. (2010); Zhang et al. (2010); Angelusiu et al. (2010). For related structures, see: Huang & Wu (2010); Khaledi et al. (2010); Zhou & Yang (2010); Ji & Lu (2010); Singh & Singh (2010); Ahmad et al. (2010). For similar compounds that we have reported recently, see: Dai & Mao (2010a,b).
see: AjaniExperimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2007); cell SAINT (Bruker, 2007); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
Supporting information
https://doi.org/10.1107/S1600536810049470/sj5069sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810049470/sj5069Isup2.hkl
The reaction of 3-nitrobenzohydrazide (0.181 g, 1 mmol) with 2,4-dichlorobenzaldehyde (0.174 g, 1 mmol) in 50 ml methanol at room temperature afforded the title compound. Yellow block-shaped single crystals were formed by slow evaporation of the clear solution in air.
The amino H atom was located in a difference Fourier map and refined with N—H = 0.90 (1) Å, and Uiso = 0.08 Å2. Other H atoms were positioned geometrically (C—H = 0.93 Å) and refined as riding with Uiso(H) = 1.2Ueq(C).
In the last few years, medical applications of a number of hydrazone compounds have been received much attention (Ajani et al., 2010; Zhang et al., 2010; Angelusiu et al., 2010). The structures of several hydrazone derivatives have also been determined (Huang & Wu, 2010; Khaledi et al., 2010; Zhou & Yang, 2010; Ji & Lu, 2010; Singh & Singh, 2010; Ahmad et al., 2010). As a continuation of our work on this area (Dai & Mao, 2010a,b), in this paper, we report the structure of the new derivative EN'-(2,4-dichlorobenzylidene)-3-nitrobenzohydrazide.
In the molecule of the title compound, the dihedral angle between the C1···C6 and C9···C14 benzene rings is 4.6 (2)°. The O2/N3/O3 plane forms a dihedral angle of 8.9 (2)° with the C9···C14 benzene ring. The bond lengths and angles are comparable to those found in the hydrazone compounds cited above. In the
the hydrazone molecules are linked through intermolecular N—H···O hydrogen bonds (Table 1), to form one-dimensional chains along the c axis, as shown in Fig. 2.For medical applications of
see: Ajani et al. (2010); Zhang et al. (2010); Angelusiu et al. (2010). For related structures, see: Huang & Wu (2010); Khaledi et al. (2010); Zhou & Yang (2010); Ji & Lu (2010); Singh & Singh (2010); Ahmad et al. (2010). For similar compounds that we have reported recently, see: Dai & Mao (2010a,b).Data collection: SMART (Bruker, 2007); cell
SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).C14H9Cl2N3O3 | F(000) = 688 |
Mr = 338.14 | Dx = 1.546 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 2237 reflections |
a = 12.004 (3) Å | θ = 2.3–24.5° |
b = 14.384 (3) Å | µ = 0.46 mm−1 |
c = 8.465 (2) Å | T = 298 K |
β = 96.302 (2)° | Block, yellow |
V = 1452.8 (6) Å3 | 0.20 × 0.20 × 0.18 mm |
Z = 4 |
Bruker SMART CCD area-detector diffractometer | 3163 independent reflections |
Radiation source: fine-focus sealed tube | 2128 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.038 |
ω scans | θmax = 27.0°, θmin = 2.2° |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | h = −15→13 |
Tmin = 0.913, Tmax = 0.921 | k = −18→18 |
11555 measured reflections | l = −10→10 |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.043 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.107 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0467P)2 + 0.1033P] where P = (Fo2 + 2Fc2)/3 |
3163 reflections | (Δ/σ)max < 0.001 |
202 parameters | Δρmax = 0.22 e Å−3 |
1 restraint | Δρmin = −0.20 e Å−3 |
C14H9Cl2N3O3 | V = 1452.8 (6) Å3 |
Mr = 338.14 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 12.004 (3) Å | µ = 0.46 mm−1 |
b = 14.384 (3) Å | T = 298 K |
c = 8.465 (2) Å | 0.20 × 0.20 × 0.18 mm |
β = 96.302 (2)° |
Bruker SMART CCD area-detector diffractometer | 3163 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | 2128 reflections with I > 2σ(I) |
Tmin = 0.913, Tmax = 0.921 | Rint = 0.038 |
11555 measured reflections |
R[F2 > 2σ(F2)] = 0.043 | 1 restraint |
wR(F2) = 0.107 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | Δρmax = 0.22 e Å−3 |
3163 reflections | Δρmin = −0.20 e Å−3 |
202 parameters |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > 2sigma(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | ||
Cl1 | 0.26406 (6) | −0.09815 (4) | 0.11977 (8) | 0.0651 (2) | |
Cl2 | 0.49631 (6) | −0.18532 (5) | −0.36654 (9) | 0.0760 (3) | |
N1 | 0.28128 (14) | 0.18486 (11) | −0.03316 (19) | 0.0344 (4) | |
N2 | 0.23633 (14) | 0.25093 (11) | 0.06051 (18) | 0.0342 (4) | |
N3 | 0.12644 (17) | 0.66091 (13) | 0.0801 (3) | 0.0542 (5) | |
O1 | 0.20635 (13) | 0.34676 (9) | −0.15308 (16) | 0.0454 (4) | |
O2 | 0.19086 (19) | 0.67781 (12) | −0.0175 (3) | 0.0808 (6) | |
O3 | 0.06980 (18) | 0.71959 (12) | 0.1368 (3) | 0.0922 (7) | |
C1 | 0.33504 (17) | −0.06183 (14) | −0.0373 (3) | 0.0385 (5) | |
C2 | 0.34878 (16) | 0.03282 (13) | −0.0659 (2) | 0.0330 (5) | |
C3 | 0.40982 (18) | 0.05744 (14) | −0.1909 (2) | 0.0394 (5) | |
H3 | 0.4201 | 0.1200 | −0.2128 | 0.047* | |
C4 | 0.45528 (18) | −0.00914 (16) | −0.2829 (2) | 0.0449 (5) | |
H4 | 0.4973 | 0.0084 | −0.3640 | 0.054* | |
C5 | 0.43747 (18) | −0.10158 (15) | −0.2525 (3) | 0.0446 (6) | |
C6 | 0.37757 (18) | −0.12984 (15) | −0.1318 (3) | 0.0451 (6) | |
H6 | 0.3657 | −0.1926 | −0.1135 | 0.054* | |
C7 | 0.30075 (17) | 0.10478 (13) | 0.0282 (2) | 0.0353 (5) | |
H7 | 0.2847 | 0.0923 | 0.1311 | 0.042* | |
C8 | 0.20044 (16) | 0.33100 (13) | −0.0112 (2) | 0.0320 (5) | |
C9 | 0.15054 (16) | 0.40225 (13) | 0.0894 (2) | 0.0296 (4) | |
C10 | 0.16380 (16) | 0.49489 (13) | 0.0476 (2) | 0.0340 (5) | |
H10 | 0.2056 | 0.5105 | −0.0347 | 0.041* | |
C11 | 0.11400 (18) | 0.56310 (14) | 0.1300 (2) | 0.0386 (5) | |
C12 | 0.05041 (19) | 0.54271 (16) | 0.2516 (3) | 0.0490 (6) | |
H12 | 0.0173 | 0.5898 | 0.3054 | 0.059* | |
C13 | 0.03713 (19) | 0.45074 (17) | 0.2916 (3) | 0.0477 (6) | |
H13 | −0.0056 | 0.4356 | 0.3732 | 0.057* | |
C14 | 0.08693 (16) | 0.38009 (15) | 0.2110 (2) | 0.0376 (5) | |
H14 | 0.0774 | 0.3183 | 0.2388 | 0.045* | |
H2 | 0.231 (2) | 0.2398 (18) | 0.1627 (14) | 0.080* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.0776 (5) | 0.0440 (4) | 0.0797 (5) | −0.0040 (3) | 0.0359 (4) | 0.0085 (3) |
Cl2 | 0.0832 (5) | 0.0620 (4) | 0.0845 (5) | 0.0183 (4) | 0.0174 (4) | −0.0351 (4) |
N1 | 0.0418 (10) | 0.0307 (9) | 0.0318 (9) | 0.0035 (8) | 0.0095 (8) | −0.0038 (7) |
N2 | 0.0493 (11) | 0.0294 (9) | 0.0259 (8) | 0.0063 (8) | 0.0126 (8) | 0.0000 (7) |
N3 | 0.0544 (14) | 0.0335 (11) | 0.0733 (15) | 0.0013 (10) | 0.0004 (11) | −0.0153 (10) |
O1 | 0.0735 (11) | 0.0371 (8) | 0.0285 (8) | 0.0118 (7) | 0.0187 (7) | 0.0037 (6) |
O2 | 0.1069 (17) | 0.0392 (10) | 0.1022 (16) | −0.0029 (10) | 0.0370 (14) | 0.0029 (10) |
O3 | 0.0933 (15) | 0.0387 (10) | 0.151 (2) | 0.0116 (10) | 0.0411 (14) | −0.0234 (12) |
C1 | 0.0363 (12) | 0.0334 (11) | 0.0455 (12) | 0.0019 (9) | 0.0034 (10) | 0.0002 (9) |
C2 | 0.0334 (11) | 0.0326 (11) | 0.0324 (11) | 0.0044 (9) | 0.0011 (9) | −0.0038 (8) |
C3 | 0.0489 (14) | 0.0332 (11) | 0.0365 (12) | 0.0037 (10) | 0.0059 (10) | −0.0011 (9) |
C4 | 0.0486 (14) | 0.0508 (14) | 0.0365 (12) | 0.0040 (11) | 0.0098 (10) | −0.0078 (10) |
C5 | 0.0425 (13) | 0.0420 (13) | 0.0484 (13) | 0.0102 (10) | 0.0013 (11) | −0.0168 (10) |
C6 | 0.0474 (14) | 0.0297 (11) | 0.0568 (14) | 0.0037 (10) | −0.0002 (12) | −0.0072 (10) |
C7 | 0.0415 (13) | 0.0348 (11) | 0.0301 (11) | 0.0036 (9) | 0.0068 (9) | −0.0008 (8) |
C8 | 0.0382 (12) | 0.0286 (10) | 0.0299 (11) | −0.0011 (9) | 0.0066 (9) | −0.0021 (8) |
C9 | 0.0300 (11) | 0.0327 (11) | 0.0258 (10) | 0.0025 (8) | 0.0024 (8) | −0.0012 (8) |
C10 | 0.0338 (11) | 0.0334 (11) | 0.0351 (11) | −0.0003 (9) | 0.0048 (9) | −0.0041 (8) |
C11 | 0.0376 (12) | 0.0341 (11) | 0.0426 (12) | 0.0050 (9) | −0.0017 (10) | −0.0076 (9) |
C12 | 0.0478 (14) | 0.0534 (15) | 0.0460 (13) | 0.0155 (11) | 0.0054 (11) | −0.0160 (11) |
C13 | 0.0452 (14) | 0.0649 (16) | 0.0355 (12) | 0.0095 (12) | 0.0155 (10) | −0.0011 (11) |
C14 | 0.0391 (12) | 0.0430 (12) | 0.0315 (11) | 0.0030 (10) | 0.0070 (9) | 0.0031 (9) |
Cl1—C1 | 1.736 (2) | C4—C5 | 1.376 (3) |
Cl2—C5 | 1.741 (2) | C4—H4 | 0.9300 |
N1—C7 | 1.275 (2) | C5—C6 | 1.374 (3) |
N1—N2 | 1.384 (2) | C6—H6 | 0.9300 |
N2—C8 | 1.350 (2) | C7—H7 | 0.9300 |
N2—H2 | 0.889 (10) | C8—C9 | 1.499 (3) |
N3—O3 | 1.215 (2) | C9—C14 | 1.384 (3) |
N3—O2 | 1.216 (3) | C9—C10 | 1.392 (3) |
N3—C11 | 1.481 (3) | C10—C11 | 1.378 (3) |
O1—C8 | 1.232 (2) | C10—H10 | 0.9300 |
C1—C6 | 1.395 (3) | C11—C12 | 1.379 (3) |
C1—C2 | 1.396 (3) | C12—C13 | 1.379 (3) |
C2—C3 | 1.397 (3) | C12—H12 | 0.9300 |
C2—C7 | 1.463 (3) | C13—C14 | 1.395 (3) |
C3—C4 | 1.383 (3) | C13—H13 | 0.9300 |
C3—H3 | 0.9300 | C14—H14 | 0.9300 |
C7—N1—N2 | 116.89 (16) | N1—C7—C2 | 118.86 (18) |
C8—N2—N1 | 116.96 (15) | N1—C7—H7 | 120.6 |
C8—N2—H2 | 122.3 (17) | C2—C7—H7 | 120.6 |
N1—N2—H2 | 120.7 (17) | O1—C8—N2 | 123.05 (17) |
O3—N3—O2 | 123.7 (2) | O1—C8—C9 | 119.84 (17) |
O3—N3—C11 | 117.9 (2) | N2—C8—C9 | 117.11 (17) |
O2—N3—C11 | 118.37 (19) | C14—C9—C10 | 119.82 (18) |
C6—C1—C2 | 121.8 (2) | C14—C9—C8 | 123.54 (17) |
C6—C1—Cl1 | 117.98 (16) | C10—C9—C8 | 116.48 (17) |
C2—C1—Cl1 | 120.26 (16) | C11—C10—C9 | 118.99 (19) |
C1—C2—C3 | 117.44 (18) | C11—C10—H10 | 120.5 |
C1—C2—C7 | 122.28 (19) | C9—C10—H10 | 120.5 |
C3—C2—C7 | 120.28 (18) | C10—C11—C12 | 122.2 (2) |
C4—C3—C2 | 121.5 (2) | C10—C11—N3 | 118.0 (2) |
C4—C3—H3 | 119.2 | C12—C11—N3 | 119.8 (2) |
C2—C3—H3 | 119.2 | C11—C12—C13 | 118.4 (2) |
C5—C4—C3 | 119.0 (2) | C11—C12—H12 | 120.8 |
C5—C4—H4 | 120.5 | C13—C12—H12 | 120.8 |
C3—C4—H4 | 120.5 | C12—C13—C14 | 120.8 (2) |
C6—C5—C4 | 122.0 (2) | C12—C13—H13 | 119.6 |
C6—C5—Cl2 | 119.02 (17) | C14—C13—H13 | 119.6 |
C4—C5—Cl2 | 118.97 (19) | C9—C14—C13 | 119.8 (2) |
C5—C6—C1 | 118.3 (2) | C9—C14—H14 | 120.1 |
C5—C6—H6 | 120.9 | C13—C14—H14 | 120.1 |
C1—C6—H6 | 120.9 |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2···O1i | 0.89 (1) | 2.04 (2) | 2.859 (2) | 152 (2) |
Symmetry code: (i) x, −y+1/2, z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C14H9Cl2N3O3 |
Mr | 338.14 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 298 |
a, b, c (Å) | 12.004 (3), 14.384 (3), 8.465 (2) |
β (°) | 96.302 (2) |
V (Å3) | 1452.8 (6) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.46 |
Crystal size (mm) | 0.20 × 0.20 × 0.18 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector |
Absorption correction | Multi-scan (SADABS; Bruker, 2001) |
Tmin, Tmax | 0.913, 0.921 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 11555, 3163, 2128 |
Rint | 0.038 |
(sin θ/λ)max (Å−1) | 0.639 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.043, 0.107, 1.05 |
No. of reflections | 3163 |
No. of parameters | 202 |
No. of restraints | 1 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.22, −0.20 |
Computer programs: SMART (Bruker, 2007), SAINT (Bruker, 2007), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2···O1i | 0.889 (10) | 2.042 (15) | 2.859 (2) | 152 (2) |
Symmetry code: (i) x, −y+1/2, z+1/2. |
Acknowledgements
We acknowledge the Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection for financial support (project No. JLCBE07026).
References
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This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
In the last few years, medical applications of a number of hydrazone compounds have been received much attention (Ajani et al., 2010; Zhang et al., 2010; Angelusiu et al., 2010). The structures of several hydrazone derivatives have also been determined (Huang & Wu, 2010; Khaledi et al., 2010; Zhou & Yang, 2010; Ji & Lu, 2010; Singh & Singh, 2010; Ahmad et al., 2010). As a continuation of our work on this area (Dai & Mao, 2010a,b), in this paper, we report the structure of the new derivative EN'-(2,4-dichlorobenzylidene)-3-nitrobenzohydrazide.
In the molecule of the title compound, the dihedral angle between the C1···C6 and C9···C14 benzene rings is 4.6 (2)°. The O2/N3/O3 plane forms a dihedral angle of 8.9 (2)° with the C9···C14 benzene ring. The bond lengths and angles are comparable to those found in the hydrazone compounds cited above. In the crystal structure, the hydrazone molecules are linked through intermolecular N—H···O hydrogen bonds (Table 1), to form one-dimensional chains along the c axis, as shown in Fig. 2.